Page Comparison

[DRAFT]

Objective:

• To choose a module prototype to move forward with. [NOT PRODUCTION LEVEL TESTING]

  • Thermal Performance: Is the module easy to cool? Are there risks of a thermal runaway?

  • Electrical Performance: Does the module work? Are there areas with extremely high current density? IR?

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python battery_test.py 

2. Enter the following on the popup:

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1 Battery Channel

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3. GUI:

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4. Click assign equipment

1. do you want to connect a power supply for channel 0: no

2. do you want to connect an eload for channel 0: yes

3. do you want to use a separate device to measure voltage on channel 0: no

4. do you want to use a separate device to measure current on channel 0: no

5. do you want to use any other dmms: no

6. do you want to add a relay board for channel 0: no

5. Click Configure Test

1. name the test: msxv_prototype_test (can import test going forward)

2. select

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1. Storage Charge + Inspection

   1. Storage Charge to maintain cell safety

      1. 33.6V max voltage (~4.2V/cell)

      2. 5.8A CC portion

      3. 25A end currentCurrent

         1. We don’t want the storage to take a ton of time - we don’t need to wait for the current to drop all the way - voltage will sag a bit after finishing the charge, but we have increased the voltage to 3.8V/cell instead of the standard 3.7V/cell to account for this.

   2. After the above procedure is followed, we will calculate the capacity of each of the parallel groups to ensure there are no major discrepancies. Any voltage limits that were exceeded or not hit correctly, we will be able to create a model of the LG M50 cells and use that to extrapolate the data to get a full-capacity measurement. We will also examine the temperature graphs and the IC/DV graphs to ensure the uniformity of the cells.

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